// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()

// 云函数入口函数
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext()
  const { a, b } = event
  const sum = a + b
  const res =await db.collection('pros').where({}).limit(1).get()
  return {
    res,
    sum,
    event,
    openid: wxContext.OPENID,
    appid: wxContext.APPID,
    unionid: wxContext.UNIONID,
  }
 
}